reply to hussle87
Re: IPV6 You can use them. Please read and my previous post that those are name resolution only and do not provide the features that the OPenDNS IPv4 servers use. That's important to understand.
On a general note, as I already mentioned, a DNS server with an IPv4 address (ex: 126.96.36.199 or 188.8.131.52) will give you the AAAA records (the IPv6 address) if available.